Fix AG secondary filter to skip all inaccessible databases#360
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erikdarlingdata merged 1 commit intodevfrom Feb 27, 2026
Merged
Fix AG secondary filter to skip all inaccessible databases#360erikdarlingdata merged 1 commit intodevfrom
erikdarlingdata merged 1 commit intodevfrom
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Previous filter only excluded secondaries with READ_ONLY connections, missing secondaries configured with NO connections or suspended data movement. Replace complex NOT IN subquery with a simpler LEFT JOIN to sys.dm_hadr_database_replica_states — only query databases not in an AG or on the primary replica. Fixes all 4 affected files: install scripts 09/39 and Lite collectors. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
READ_ONLYsecondaries, missingNOconnections and suspended data movementNOT INsubquery (usingsys.availability_replicas+sys.dm_hadr_availability_group_states) with a simplerLEFT JOINtosys.dm_hadr_database_replica_statesinstall/09,install/39, and both Lite collector servicesTest plan
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